... vacuum-pumping ==> 真空排气,抽真空 vacuum-pumping equipment ==> 真空抽气设备 vacuum-pumping system ==> 真空抽气系统,抽真空系统 ...
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本文介绍适用于干式减压蒸馏的特殊结构真空抽气设备。
This paper introduced a new type and special structured vacuum pump unit suitable for dry type reduced-pressure distillation.
在罩式电炉内处理，采取液氮作为保护气体，并设真空抽气设备。
Liquid nitrogen is adopted as protective atmosphere in bell type furnace for which vacuum pumping system are provide also.
具有对电力设备真空抽气和真空注油功能。
It possesses vacuum air bleeding and vacuum oil adding function.
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